I've learned a few things about the person who lost the memory card. I know that this was the last recorded trip the owner of the lost memory card made before he lost the card. The Stampede Trail is state land that is sandwiched between Federal land on three sides in the northeast corner of Denali Park . It seems like they took a smoke break to consult the map. Maybe they didn't expect to have to cross any substantial rivers. **While surveying out in Denali Park, miles from the nearest road, I found a 1GB memory card that still works. It seems to have wintered somewhere around the Stampede Trail along the Teklanika River. Here is a link to the story of how I found the card, and a link to the conclusion of how I found the memory card's owner.